From 084c8a9b85b853fa630d5a102cd102b45d543abf Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Tue, 20 Dec 2011 18:31:56 +0000
Subject: building multiple views

---
 src/viewpoint.cpp | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 src/viewpoint.cpp

(limited to 'src/viewpoint.cpp')

diff --git a/src/viewpoint.cpp b/src/viewpoint.cpp
new file mode 100644
index 0000000..249084f
--- /dev/null
+++ b/src/viewpoint.cpp
@@ -0,0 +1,88 @@
+#include "viewpoint.h"
+
+void viewpoint::setup(float w, float h, float x, float y) {
+    window=ofRectangle(w,h,x,y);
+    distortFactor=0.0;
+    renderFBO.allocate(window.width,window.height,GL_RGB);
+
+    //todo: load/save from xml
+    fov=17.25;
+    aspect=1.79;
+    near=1;
+    far=20;
+
+	camera.setParent(target);
+    camera.setPosition(0,0,200);
+
+	vars=new keyVar[8];
+
+	//void set(char _keyInc,char _keyDec,float _val,float _speed,float _accel,float accelTime);
+	vars[0].set('w','s',17.25,0.5,2.0,3.0);
+	vars[1].set('g','d',0.0,0.2,3.0,3.0);
+	vars[2].set('r','v',0.0,0.2,3.0,3.0);
+	vars[3].set('t','c',0.0,0.2,3.0,3.0);
+	vars[4].set('u','n',0.0,1.0,3.0,3.0);
+    vars[5].set('j','h',0.0,1.0,3.0,3.0);
+    vars[6].set('o','l',0.0,0.2,3.0,3.0);
+    vars[7].set('q','a',0,0.1,2.0,3.0);
+}
+//--------------------------------------------------------------
+void viewpoint::begin(){
+    camera.begin();
+	camera.setFov(vars[0].getVal());
+	target.setPosition(vars[1].getVal(),vars[2].getVal(),vars[3].getVal());
+	target.rotate(vars[4].getInc(),1,0,0);
+	target.rotate(vars[5].getInc(),0,1,0);
+    camera.move(0,0,vars[6].getInc());
+
+    renderFBO.begin();
+    ofClear(0,0,0);
+}
+//--------------------------------------------------------------
+void viewpoint::end(){
+
+    renderFBO.end();
+    camera.end();
+
+    glPushMatrix();
+    bindTexture(renderFBO);
+        //draw a grid
+        //glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
+        ofNoFill();
+
+        ofSetLineWidth(1.0);
+        //ofSetColor(I_fade1,I_fade1,I_fade1);
+        int gridX=50;
+        int gridY=50;
+        int xStep=ofGetWidth()/2;
+        int yStep=ofGetHeight()/2;
+        ofTranslate(ofGetWidth()/2,ofGetHeight()/2);
+
+        for (float i = -1; i < 1.001; i+=(2.0f/gridY)){
+            glBegin(GL_QUAD_STRIP);
+            ofPoint p0;
+            ofPoint p1;
+                for (float j = -1; j < 1.001; j+=(2.0f/gridX)){
+                    p0=distort(ofPoint(j,i-(2.0f/gridY)),distortFactor);
+                    p1=distort(ofPoint(j,i),distortFactor);
+                    glTexCoord2f((j+1)*0.5,((i-(2.0f/gridY))+1)*0.5);
+                    glVertex3f(p0.x*xStep,p0.y*yStep,0);
+                    glTexCoord2f((j+1)*0.5,(i+1)*0.5);
+                    glVertex3f(p1.x*xStep,p1.y*yStep,0);
+                }
+            glEnd();
+        }
+
+        ofFill();
+    glPopMatrix();
+    unbindTexture(renderFBO);
+
+}
+//--------------------------------------------------------------
+void viewpoint::keyPressed(int key){
+    for (int i=0;i<8;i++) vars[i].keyPressed(key);
+ }
+//--------------------------------------------------------------
+void viewpoint::keyReleased(int key){
+	for (int i=0;i<8;i++) vars[i].keyReleased(key);
+}
-- 
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